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You're viewing version 1.2.0 of meta. The latest stable version of Clojure Core is 1.3.0.

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1.2.0

1.2.0
1.3.0

meta

clojure.core

(meta obj)

Returns the metadata of obj, returns nil if there is no metadata.

1 Example top

link | changes
```
user=> (meta #'first)
{:ns #<Namespace clojure.core>, :name first, :file "clojure/core.clj", :line 39, :arglists ([coll]), :doc "Returns the first item in the collection. Calls seq on its\n    argument. If coll is nil, returns nil."}
```
user=> (meta #'first) {:ns #<Namespace clojure.core>, :name first, :file "clojure/core.clj", :line 39, :arglists ([coll]), :doc "Returns the first item in the collection. Calls seq on its\n argument. If coll is nil, returns nil."}

Source clojure/core.clj:178 top

(def
 ^{:arglists '([obj])
   :doc "Returns the metadata of obj, returns nil if there is no metadata."
   :added "1.0"}
 meta (fn meta [x]
        (if (instance? clojure.lang.IMeta x)
          (. ^clojure.lang.IMeta x (meta)))))

Vars in clojure.core/meta: fn instance?

Used in 59 other vars (expand)

fn print-namespace-doc print-doc ->> vary-meta defn- intern -> reify type testing-vars-str function? test-all-vars test-name down insert-left up children vector-zip branch? leftmost replace insert-right seq-zip make-node right left remove rightmost defmacro- defvar- defvar handler-case defunbound- defunbound defonce- defalias defstruct- raise testing-vars-str function? test-all-vars auto? mapcat-chain auto reset has-run? help-summary-for help-for sort-key test? pending? test-name cacheable? find-definitions-for-emacs inspect-meta-information i-want namespace-matcher function-matcher

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Clojure Core

Namespaces

meta

clojure.core

1 Example top

See Also top

Source clojure/core.clj:178 top

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